Field

A FieldFieldA property of a DataElement expanded to a database column and user interface input element. describes a property of a DataElement. These fieldsFieldA property of a DataElement expanded to a database column and user interface input element. will be expanded to columns in a database table and fieldsFieldA property of a DataElement expanded to a database column and user interface input element. in forms and are the basic content of a data elementData Element (DataElement). A fundamental data concept or entity within an application's domain, acting as an anthropomorphic translation of a real-life object or concept..

Booking.xml

<dataElement name="Booking">
  <fields>
    <field name="name"/>
    <field name="startDate"/>
  </fields>
</dataElement>

Attributes

• name: the name of the fieldFieldA property of a DataElement expanded to a database column and user interface input element..
• description: a descriptive text for the fieldFieldA property of a DataElement expanded to a database column and user interface input element..
• fieldType: the kind of fieldFieldA property of a DataElement expanded to a database column and user interface input element..
• isInfoField: see IsInfoField.
• isListField: see IsListField.

IsInfoField

When a fieldFieldA property of a DataElement expanded to a database column and user interface input element. is marked as InfoField, it will be included in an info projectionProjectionA tailored subset of fields on a DataElement designed to encapsulate data for a specific technical or functional view. (see Projection). The info projectionProjectionA tailored subset of fields on a DataElement designed to encapsulate data for a specific technical or functional view. handles the concern of displaying information about a data elementData Element (DataElement). A fundamental data concept or entity within an application's domain, acting as an anthropomorphic translation of a real-life object or concept. and thus selects all elements that should be visible to the user when managing this element.

Booking.xml

<dataElement name="Booking">
  <fields>
    <field name="startDate">
      <isInfoField>true</isInfoField>
    </field>
  </fields>
</dataElement>

IsListField

If a fieldFieldA property of a DataElement expanded to a database column and user interface input element. must only contain values from a predefined list, it should be marked as a ListField.

FieldType

FieldsFieldA property of a DataElement expanded to a database column and user interface input element. can either be ValueFieldsFieldA property of a DataElement expanded to a database column and user interface input element. (basic attributes) or LinkFieldsFieldA property of a DataElement expanded to a database column and user interface input element. (references to other data elementsData Element (DataElement). A fundamental data concept or entity within an application's domain, acting as an anthropomorphic translation of a real-life object or concept.).

Value	Kind
VALUE_FIELD	A ValueField.
LINK_FIELD	A LinkField.
CALCULATED_FIELD	A ValueField for which the value is not stored in the database, but rather derived based on other values.

ValueField

Value fieldsFieldA property of a DataElement expanded to a database column and user interface input element. are simple fieldsFieldA property of a DataElement expanded to a database column and user interface input element. that have a name and a valueFieldType. The ValueFieldType defines how the fieldFieldA property of a DataElement expanded to a database column and user interface input element. is stored and represented.

E.g. the following fieldFieldA property of a DataElement expanded to a database column and user interface input element. will be represented and stored as a simple String:

<field name="address">
  <fieldType>VALUE_FIELD</fieldType>
  <valueField>
    <type>String</type>
  </valueField>
</field>

There are several built-in value types, but it is also possible to define a ValueType yourself.

LinkField

Link fieldsFieldA property of a DataElement expanded to a database column and user interface input element. define a relationship between two elements. They have a name, a targetElement and a linkFieldType.

The target element is a reference to another data elementData Element (DataElement). A fundamental data concept or entity within an application's domain, acting as an anthropomorphic translation of a real-life object or concept.. E.g. if you wish to link from a Booking to a Car data element.

<field name="car">
  <fieldType>LINK_FIELD</fieldType>
  <linkField>
    <targetElement component="rental" name="Car"/>
    <linkFieldType name="Ln01"/>
  </linkField>
</field>